Railway-tie.



v L. DUNCAN.

n RAILWAY TIE.l I APPLICATION FILED `MIIY'2'3.'I9I7.

Patented Jan. 1918.

A TTUR/VEYS "citizen of the United States, and resident vof But-te, in the county of' Silverbow and State.

` To all whom it may concern:

Specicatioii of Letters Patent. @attempted Jaim., 22, @@i

appncannmea may 2a, 1917; serial no. 170,403.

Be it known that l, LEANDER DNCAN, a

of Montana, have invented a new and lm'- proved lRailway-Tie, of which the following is a full, clear, and exact description.

This invention relates t0 railway track construction and has particular reference to railwaycross ties.

Among the objects of the invention is to vimprove that ltype'of concrete or composite ties covered in my Patent Nd. 1,227,405, grantedMay 22, 191i'.

lAnother object of the invention is to `"sim- .plify and thereby practically improve the means for anchoring the rails to the concrete ties.

'. With the foregoing and other objects in view the invention consists in the arrangement and combination of parts hereinafter cal embodiment thereof reference is had to the accompanying drawings, in which like' reference lcharacters designate the same parts 1n the several views, and 1n whlch Figure 1 1s a plan view of a Cross tie made in -accordance with this invention and showing fragments ofthe rails anchored thereto.

Fig. 2 is a vertical longitudinal section on f the line 2-2 of Fig. 1.-

Fig. 3 is avertical .transverse section on the line 3-3 of Fig. 2; and f Fig. 4 is a detail perspective view of the bed plate detached.

Referring nowmore particularly to thev drawings I show a tie 10.made of reinforced vconcrete and of the same general type as is shown and claimed in .the patent above ref ferred to, the same comprising a plurality of longitudinal reinforcement strips 11 and 12 extending preferably the full length of 13 indicates a bed plate of heavy metall which comprises a bottom panel 14, up-

. .wardly projecting portions 15 at the ends'of the bottom panel, and being provided at the upperends of the upright portions 15 with a pair of horizontally and oppositely projecting lips 16, lying in the same plane, and

` parallel to the bottomV panel 1l. The projectmg lip'portions of the bed plate being embedded in the concrete provide a rigi Ior its equivalent, saidtie plate www@ the bottom panel 14V of this improvement is provided with a pair of screw threaded i holes 111. v

That portion of the tie in which the bed plate 13 is located is hollow or provided with a cavity'17 of substantially the full depth of the tie and preferably rectangular in hori zontal section or plan view, and of any de sii-ed width. with respect to the bed plate.. A' block of cushioning material 18 such as creosoted wood and hereinafter referredto as a cushion is fitted within this cavity 1i' and rests uponthe bottom panel 14 ofthe bm plate.` The upper surface'of 'the cushion is depressed somewhat below the upper-surface of the tie and against the same and rting upon the cushion is a tie plate 19 of metal completely fill the upper portion of the cavity 17 and projecting somewhat above the upper surface of the tie.v The tie plate and cushion are both provided with vertiml holes registering with the threaded holes 1li of the bed plate. l

The base flange 20 of the. rail is supported directly upon the middle portion of the up per surface of the tie plate and the mme may be locked or anchored in such position by suitable fasteners passing downwardly through the holes in the tie plate and into or through Ythe block of wood constituting the cushion. As shown herein ll prefer to use for'this purpose a pair of bolts 21 haring large octagonal heads 22 and threaded ends cooperating directly with said holes. 14: ofthe bed plate.' Since the bed plate is strong and well anchored in the tie, the Athreaded bolt' connections serving to anchor the railupon the tie plate and the tie plat-e and vcushion in turn upon the bed plateE it follows that the rail must be reliably an chored, without danger or likelihood of loss distance between the bolts will correspond to the width of the base Aflange of the rail. n the event of the necessity for renewal or- .interchange of a tie or. any part of the tie,

" such interchange may be easily' effected by v the ,umial manner.

41;l1'1s cr`ewing the bo ts so as to allow the tie to be slipped endwise from its position in claim:

n a railway tie, the combination with 'a reinforced conorete body and av strong stili l metal bed plate embedded therein, said bed plate having a plurality of threaded holes therein, of a resilient cushion located in the tie and supported upon said bed plate, a flat metal tie plate supported upon the cushion and adapted to receive the ybase flange of the rail directly thereon, said cushion and tie plate being provided with vertical holes registering With said threaded holes, and a pair of threaded bolts passing down through said vertical holes into the threaded holes and having heads envaging the edges of the base flange to lock all of the parts together.

LEANDER DUNCAN. 

